People in London look the most miserable in their selfies while strong smiles are found in Sao Paulo and Bangkok, says a researcher involved in setting up a London show about selfies. For its new exhibition Big Bang Data, Somerset House has commissioned Selfiecity London, a spotlight on 640 selfies selected out of a total of 152,462 public Instagram images taken in a single week in September in a 5km2 radius around the museum. The show opens to the public on Thursday (3 December).Dec 4, 2015